<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>文本练习</title>
    <link rel="stylesheet" href="./index2.css">
    <style>
        #c5 {
            font-size: 50px;
            font-family:楷体;
            font-style: italic;
            font-weight: lighter;
            color: aqua;
        }
        em {
            white-space: pre;
        }
    </style>
</head>
<body>
    <div class="top-nav">
        <ul>
            <li><a href="./css样式一.html">css样式一</a></li>
            <li><a href="./盒子模型.html">选择器与盒子</a></li>
            <li><a href="./五星图.html">颜色与背景</a></li>
            <li><a href="./奖状1.html">制作奖状</a></li>
        </ul>
    </div>
    <div id="c5">你好啊</div>
    <em>        
        100~300≈lighter
        400~500≈norma
        600及以上≈bold
    </em>
</body>
</html>